Good on both of you. I don't understand why it's so hard for some people to pack out the stuff they carried in, especially now that's it's empty and a lot lighter than it originally was.
It must be cultural because I see a lot less of it in Europe, especially on well-used trails, than in North America.
I recall once when in Switzerland. We were sitting on a train that had pulled into a station. A bunch of schoolgirls ran to get on. One girl dropped a wrapper. Another girl stopped her and pointed to the wrapper. The first girl ran back to pick it up, even though she risked missing the train. Sadly you'll never see something like that over here.
one or more gifts or other benefits from the co-op.